# How to connect PayPal Zettle to Claude

```json
{
  "title": "How to connect PayPal Zettle to Claude",
  "toolkit": "PayPal Zettle",
  "toolkit_slug": "zettle",
  "framework": "Claude Cowork",
  "framework_slug": "claude-cowork",
  "url": "https://composio.dev/toolkits/zettle/framework/claude-cowork",
  "markdown_url": "https://composio.dev/toolkits/zettle/framework/claude-cowork.md",
  "updated_at": "2026-10-28T05:34:44.332Z"
}
```

## Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.
This guide walks you through the easiest and most secure way to connect your PayPal Zettle account to Claude via Composio Connect, enabling it to list products in your PayPal Zettle library, check low-stock PayPal Zettle inventory items, review recent PayPal Zettle purchases, and more such actions on your behalf without compromising your account security.
Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

## Also integrate PayPal Zettle with

- [ChatGPT](https://composio.dev/toolkits/zettle/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/zettle/framework/hermes-agent)
- [Atomic Agent](https://composio.dev/toolkits/zettle/framework/atomic-agent)

## Connect PayPal Zettle to Claude Cowork

### Connecting PayPal Zettle to Claude Web, Desktop, and Cowork
Two ways to add the Composio connector. Pick whichever you prefer.
### 1. Add with one click
Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.
[Add to Claude](https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Composio&connectorUrl=https%3A%2F%2Fconnect.composio.dev%2Fmcp)
### Add manually
In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.
Click Add custom connector and paste in the Composio MCP server URL:

```bash
https://connect.composio.dev/mcp
```

## What is the PayPal Zettle MCP server, and what's possible with it?

The PayPal Zettle MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your PayPal Zettle account. It provides structured and secure access to your product library, inventory, purchases, finance data, tax settings, and webhook subscriptions, so your agent can manage products and categories, track stock, review purchases and transactions, and configure discounts and tax rates on your behalf.
- Product library management: Have your agent create, update, list, count, import, and delete products, categories, product images, discounts, and tax rates in your Zettle library.
- Inventory and stock tracking: Let the agent list inventories, check product stock, review low-stock settings, and monitor inventory tracking across your stores.
- Purchase and finance reporting: Direct your agent to retrieve purchases and refunds, list transactions within a date range, check account balances, and review payout information.
- Tax and discount administration: Instruct your agent to retrieve tax settings, manage tax rates, create or remove discounts, and check how many products use each tax rate.
- Webhook subscription management: Have your agent create and delete Zettle webhook subscriptions for selected events and retrieve the signing key needed to verify incoming messages.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `ZETTLE_COUNT_PRODUCTS` | Count Products | Retrieve the count of existing products for a merchant organization. |
| `ZETTLE_COUNT_PRODUCTS_BY_TAX_RATE` | Count Products By Tax Rate | Get each tax rate and its associated product count. Zettle documents this tax surface as unavailable outside sales-tax countries. |
| `ZETTLE_CREATE_CATEGORIES` | Create Categories | Create one or more product categories in one request and return creation metadata. |
| `ZETTLE_CREATE_DISCOUNT` | Create Discount | Create a fixed-amount or percentage discount in a product library. |
| `ZETTLE_CREATE_INVENTORY` | Create Inventory | Create one Zettle STORE inventory from its name and optional description. |
| `ZETTLE_CREATE_PRODUCT` | Create Product | Create a product and up to 99 complete embedded variants. |
| `ZETTLE_CREATE_TAX_RATES` | Create Tax Rates | Create up to 15 tax rates in one request. Zettle documents this tax surface as unavailable outside sales-tax countries. |
| `ZETTLE_CREATE_WEBHOOK_SUBSCRIPTION` | Create Webhook Subscription | Create a Zettle webhook subscription for selected events at a public HTTPS destination and return the signing key needed to verify incoming messages. |
| `ZETTLE_DELETE_CATEGORY` | Delete Category | Permanently delete a category. This cannot be undone; verify the identifier before calling. |
| `ZETTLE_DELETE_DISCOUNT` | Delete Discount | Permanently delete one discount. This cannot be undone; verify the identifier before calling. |
| `ZETTLE_DELETE_PRODUCTS` | Delete Products | Permanently delete one or more products and their embedded variants. This cannot be undone; verify every product UUID before calling. |
| `ZETTLE_DELETE_TAX_RATE` | Delete Tax Rate | Permanently delete one tax rate. This cannot be undone; verify the identifier before calling. Zettle documents this tax surface as unavailable outside sales-tax countries. |
| `ZETTLE_DELETE_WEBHOOK_SUBSCRIPTION` | Delete Webhook Subscription | Permanently delete a Zettle webhook subscription. This cannot be undone; verify the identifier before calling. |
| `ZETTLE_FETCH_PRODUCT_IMAGE` | Fetch Product Image | Fetch a product image by lookup key, optionally resizing, cropping, or converting it, and return a downloadable file. |
| `ZETTLE_GENERATE_PRODUCT_SLUG` | Generate Product Slug | Create a unique online product slug from a product name. |
| `ZETTLE_GET_DISCOUNT` | Get Discount | Retrieve one discount from a merchant's product library. |
| `ZETTLE_GET_FINANCE_BALANCE` | Get Finance Balance | Get the balance of the merchant's preliminary or liquid Zettle account, optionally at a specified point in time. |
| `ZETTLE_GET_IMPORT_STATUS` | Get Import Status | Return the latest product-library import status, or a specific import when import_uuid is provided. |
| `ZETTLE_GET_INVENTORY` | Get Inventory | Fetch one inventory belonging to the connected Zettle organization. |
| `ZETTLE_GET_PAYOUT_INFO` | Get Payout Info | Get the connected merchant's liquid-account payout balance, next payout amount, voucher discount balance, and payout schedule at a point in time. |
| `ZETTLE_GET_PRODUCT` | Get Product | Retrieve one product and its complete embedded variants. |
| `ZETTLE_GET_PRODUCT_LIBRARY` | Get Product Library | Return one page of the complete product library or changes after an event-log UUID, including full products, embedded variants, and discounts. |
| `ZETTLE_GET_PRODUCT_STOCK` | Get Product Stock | Return one page of variant stock balances from the documented product- and inventory-specific Zettle endpoint, including low-stock settings and a continuation cursor. |
| `ZETTLE_GET_PURCHASE` | Get Purchase | Fetch one immutable Zettle purchase or refund by its UUID version 1, including complete item, payment, discount, tax, and refund details. |
| `ZETTLE_GET_SELECTED_PRODUCTS_STOCK` | Get Selected Products Stock | Return one page of product-variant stock balances for selected products in one Zettle inventory. |
| `ZETTLE_GET_TAX_RATE` | Get Tax Rate | Get one tax rate. Zettle documents this tax surface as unavailable outside sales-tax countries. |
| `ZETTLE_GET_TAX_SETTINGS` | Get Tax Settings | Get organization tax settings and the organization UUID needed by other Zettle actions. Zettle documents this tax surface as unavailable outside sales-tax countries. |
| `ZETTLE_GET_TRACKING_STATUS` | Get Tracking Status | Return inventory-tracking status for selected Zettle products. |
| `ZETTLE_IMPORT_LIBRARY_ITEMS` | Import Library Items | Start an asynchronous product import. At least one product is required. Zettle currently ignores discounts and categories included in the payload; create those resources with their dedicated actions. Only one import can run at a time. |
| `ZETTLE_IMPORT_PRODUCT_IMAGES` | Import Product Images | Import one or more product images from HTTPS URLs and return their lookup keys. Imported assets have no documented delete endpoint. |
| `ZETTLE_LIST_CATEGORIES` | List Categories | Retrieve all product categories for a merchant organization. |
| `ZETTLE_LIST_DISCOUNTS` | List Discounts | Retrieve all discounts from a merchant's product library. |
| `ZETTLE_LIST_FINANCE_TRANSACTIONS` | List Finance Transactions | Return one page of transactions from a Zettle preliminary or liquid account within a required date range, optionally filtered by transaction type. |
| `ZETTLE_LIST_INVENTORIES` | List Inventories | List the merchant organization's inventories and the UUIDs needed for stock-management actions. |
| `ZETTLE_LIST_INVENTORY_STOCK` | List Inventory Stock | Return one page of product-variant stock balances from the documented inventory-specific Zettle endpoint, including low-stock settings and a continuation cursor. |
| `ZETTLE_LIST_LIBRARY_IMAGES` | List Library Images | Retrieve all image references used by library items. |
| `ZETTLE_LIST_PRODUCT_OPTIONS` | List Product Options | Retrieve aggregate active variant options in the product library. |
| `ZETTLE_LIST_PRODUCTS` | List Products | List all POS-visible products with complete embedded variants in the selected current or legacy representation. This endpoint is not paginated. |
| `ZETTLE_LIST_PURCHASES` | List Purchases | Return one page of purchases and refunds from up to three years ago, with date and ordering filters plus an opaque continuation cursor. |
| `ZETTLE_LIST_STOCK` | List Stock | Return one page of variant stock balances across Zettle store inventories, optionally filtered by inventory or product. |
| `ZETTLE_LIST_STOCK_UPDATES` | List Stock Updates | Return one page of stock-balance updates made at or after a timestamp, optionally filtered to specific inventories, with a continuation cursor. |
| `ZETTLE_LIST_TAX_RATES` | List Tax Rates | List the connected merchant's tax rates. Zettle does not provide this tax surface outside sales-tax countries. |
| `ZETTLE_LIST_TRACKED_PRODUCTS` | List Tracked Products | Return one page of UUIDs for Zettle products with inventory tracking enabled, with an opaque continuation cursor when more records are available. |
| `ZETTLE_LIST_TRACKING_UPDATES` | List Tracking Updates | Return one page of product inventory-tracking status changes made at or after a timestamp, with a continuation cursor when more are available. |
| `ZETTLE_LIST_WEBHOOK_SUBSCRIPTIONS` | List Webhook Subscriptions | List all webhook subscriptions configured for a Zettle organization. |
| `ZETTLE_MOVE_INVENTORY_STOCK` | Move Inventory Stock | Atomically move product-variant quantities between inventories. This changes stock balances; verify every UUID and quantity before calling. If any movement fails, Zettle applies none of them. |
| `ZETTLE_SET_INVENTORY_TRACKING` | Set Inventory Tracking | Start or stop inventory tracking for one or more Zettle products. Stopping tracking retains saved balances but stops automatic purchase updates. |
| `ZETTLE_SET_LOW_STOCK_LEVELS` | Set Low Stock Levels | Set low-stock refill thresholds and Zettle Go alert settings for product variants across inventories. All definitions are applied in one array request. |
| `ZETTLE_UPDATE_CATEGORY` | Update Category | Rename a category. Zettle requires a non-null name in the JSON body. |
| `ZETTLE_UPDATE_DISCOUNT` | Update Discount | Update selected fields of a discount using JSON merge-patch semantics, optionally guarded by its ETag. |
| `ZETTLE_UPDATE_PRODUCT` | Update Product | Replace a product using Zettle's full update contract. The request requires the product uuid, name, and current ETag from Get Product. |
| `ZETTLE_UPDATE_TAX_RATE` | Update Tax Rate | Update one tax rate. Zettle documents this tax surface as unavailable outside sales-tax countries. |
| `ZETTLE_UPDATE_TAX_SETTINGS` | Update Tax Settings | Update the organization's taxation mode. This changes tax behavior across the entire organization; verify the intended mode before calling. Zettle documents this tax surface as unavailable outside sales-tax countries. |
| `ZETTLE_UPDATE_WEBHOOK_SUBSCRIPTION` | Update Webhook Subscription | Change a Zettle webhook subscription's selected events, HTTPS destination, transport, or contact email. |
| `ZETTLE_UPLOAD_PRODUCT_IMAGE` | Upload Product Image | Upload one GIF, JPEG, or PNG product image smaller than 5 MB and larger than 50 by 50 pixels. |

## Supported Triggers

None listed.

## Troubleshooting

### 1. Why does Claude not use the Composio connector for PayPal Zettle?

The connector can show as connected, but Claude must use it in each PayPal Zettle conversation.
- Click + at the lower left of the chat, or type /.
- Hover Connectors.
- Turn on Composio.
- Ask Claude to connect to PayPal Zettle again.

### 2. Why does Claude show an MCP server error before PayPal Zettle connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for PayPal Zettle.
- Check that the connector URL is https://connect.composio.dev/mcp.
- Connectors run from Anthropic's cloud, so your device network is usually not the problem.
- Add the connector again from Customize > Connectors, then ask Claude to connect PayPal Zettle.
- If it fails again, send the error and the ofid_ reference id to support@composio.dev.

### 3. Why does the PayPal Zettle authorization link not work?

The Composio connector is one server. Your PayPal Zettle account connects separately when Claude asks for it.
- If the browser does not open, or the link expires, ask Claude to retry the PayPal Zettle connection.
- Composio creates a fresh PayPal Zettle authorization link.
- Open that link in your browser and finish the PayPal Zettle sign-in.

### 4. Why do PayPal Zettle actions fail after they worked before?

The PayPal Zettle connection can expire or lose permission.
- Ask Claude to inspect the PayPal Zettle connection.
- If the connection is unhealthy, disconnect it when Claude prompts you.
- Reconnect the PayPal Zettle account and retry the action.
- If Claude shows a permission prompt, approve it before Claude changes data in PayPal Zettle.
- If the action still fails with a permission error, check that the connected account has that permission in PayPal Zettle itself.

### 5. How do I switch to a different PayPal Zettle account?

Claude can manage the PayPal Zettle connection for you.
- Ask Claude to disconnect or delete the current PayPal Zettle account.
- Ask Claude to connect PayPal Zettle again.
- Open the new Composio authorization link for PayPal Zettle.
- Sign in with the other PayPal Zettle account in the browser.
- After the account connects, ask Claude to retry the PayPal Zettle task.

### 6. Why is my PayPal Zettle connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your PayPal Zettle connection works in Claude Web, Desktop, and Cowork.
- In Claude Desktop, open Customize > Connectors.
- Next to Composio, click ⋮ and click Clear cache.
- If PayPal Zettle tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
- On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect PayPal Zettle.

## Creating MCP Server - Stand-alone vs Composio SDK

The PayPal Zettle MCP server connects Claude Web, Desktop, and Cowork to your PayPal Zettle account through Composio. Once connected, Claude can use the available PayPal Zettle tools and triggers to complete tasks on your behalf.

## Complete Code

None listed.

## How to build PayPal Zettle MCP Agent with another framework

- [ChatGPT](https://composio.dev/toolkits/zettle/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/zettle/framework/hermes-agent)
- [Atomic Agent](https://composio.dev/toolkits/zettle/framework/atomic-agent)

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## Frequently Asked Questions

### What are the differences in Tool Router MCP and PayPal Zettle MCP?

With a standalone PayPal Zettle MCP server, the agents and LLMs can only access a fixed set of PayPal Zettle tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from PayPal Zettle and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Cowork?

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right PayPal Zettle tools.

### Can I manage the permissions and scopes for PayPal Zettle while using Tool Router?

Yes, absolutely. You can configure which PayPal Zettle scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your PayPal Zettle data and credentials are handled as safely as possible.

---
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